P0411 Audi -Does this only affect start up emissions and not harm the engine?

Question

Will this code prevent passing a smog test?

Answer 1

Hi there, 

Yes, it is possible for this code to fail a smog test. Here is a list of possible causes for this code.

P0411 AUDI - Secondary Air Injection System Incorrect Flow Detected

Read more: https://www.autocodes.com/p0411_audi.html